Koesters stain

例句：

1. 1.The stained glass window is a work of art.
   这个被染色的玻璃窗是一个艺术作品。
2. 2.The stain on the shirt was caused by the spilled ink.
   衬衫上的污渍是墨水溢出造成的。
3. 3. The stain on the tablecloth was from the wine that spilled during the party.
   桌布上的污渍是派对期间酒水洒落造成的。